Stand-pipe for locomotives.



. Inventor.

ttorney.

Patented lan. 30, |900.

No. 642MB.

J. HENDERSN.

STAND PIPE FR LOCUMOTIVES.

(Application led Mar. 14, 1898.)

(No Model.)

v A w Z 7l.

Witnesses.

@im mgm? ilnrrnio Stains A'rnnii JAMES HENDERSON, 0F THREE RIVERS, MICHIGAN, ASSIGNOR TO THE SIIEFFIELD CAR COMPANY, OE SAME PLAGE.

STAN D- Pl PE FO R LOCQM OTIVES.

srncrlcnrion forming part of Letters Patent No. 642,1 1s, dated January 3o, 1900.

Application led March 14, 1898. Serial No. 673,886, (No model.)

To @ZZ whom, t may concern:

Be it known that LJAMES HENDERsoN,a citizen of the United States, residing at the city of Three Rivers, in the county of St. Joseph and State of Michigan, have invented certain new and useful Improvements in Stand-Pipes for Locomotives, of which the followingis a speciication.

This invention relates to stand-pipes for locomotives, and it relates more particularly to improvements in the valve mechanism for such stand-pipes and for similar purposes.

The objects of this invention are, first, to provide a simple and efficient valve which shall be actuated by the pressure of the Water in the Water-main after the auxiliary valve has been actuated to properly distribute the Waterpressure to that end; second, to provide an improved pivotal support for a stand-pipe, and, third, to provide in connection with the valve fora stand-pipe an improved means of draining' the same.

Further objects Will appear definitely in the detailed description.

I accomplish these objects of my invention by the devices and means described in the specification.

The invention is definitely pointed out in the claims and the structure is illustrated in the accompanying drawings, in Which- Figure l is a detail end elevation of the lower part of the stand-pipe, with its connections to the Water-main. Fig. 2 is a vertical sectional elevation taken on line 2 2 of Fig. l looking in the direction of the little arrow at the end of the section-line, showing the details of the valves and other parts.

In the drawings similar letters of reference refer to similar parts throughout both views.

Referring to the lettered parts of the drawings, A represents the base or T, Which supports the vertical portion of the stand-pipe and connects the same With the Water-main P. The stand-pipe Il is supported upon a suitable bridge WV by pivot V and has a hydraulic packing U around the same, retained in position by ring-collar Z, so that the joints shall be perfectly Water-tight. On the bottom of the vertical portion of the stand-pipe L is a collar J, which is movable up and down by means of the rods K, which are connected by any suitable means for actuating the same from above.

Next to the end of the Water-1nain P is the main-valve seat I), which is screwed in and has a bridge across it. The valve C fits onto this seat to close the water-main. At the extreme end of the T, opposite the Water-main P, is the head A of the T, which forms the head of an engine-cylinder. The cylinder is a separate piece, which is finished to receive a suitable piston B. The piston B is made integral or rigidly secured to the valve C by a suitable stem or piston-rod. This stem is hollow at S. An auxiliary valve M for opening and closing the passage therethrough is provided. The auxiliary valve M is secured to the stem E, which extends through a stuiiingbox in the head A. Secured to the rod E is the disk E', and through the piston B is a passage T, communicating with the space connecting With the bottom of the vertical portion of the stand-pipe. Disk E is adapted to close the passage T when the rod E is moved toward the right of the view shown in Fig. 2, pressing the same over the opening. There is a passage S/ in the disk to connect to passage S when passage T is closed. This disk E' is secured to the piston-rod E. It embraces a pin C, which extends from the piston-head B to hold the said piston-head in position from rotating. A packing B is over the entire head and lits closely to the cylinder, forming the usual hydraulic packing. The lever G projects up through a slot in the end of the stem E from toward the bottom of the head A. The short arm of this lever projects ont and is con nected by the rod II to the bifurcated lever I. The bifurcated lever I is pivoted on an arm on ring Z, and pins on the branches thereof extend into the grooves of collar J. The collar .I is controlled by rods K, connected to suitable levers or other means above. (Not shown in the drawings.)

The movement of the lever G is limited by the cross-bar O, Which is supported by bolts b on the head A' of the cylinder. The lever G moves freely through the space, so that the piston B, with the valve C, can move Without interference from the actuating-levers.

IOO

When it is necessary to operate the auxiliary valve, the main -valve C, with the piston B, of course is held securely in place by the pressure iu the main. The pressure of the water in the main actuates the piston B, it being admitted to the cylinder F through the openings @,threugh the hollow stem S,through the aperture S', and carries with it the actuating mechanism and moves the connections above referred to. In the bottom of the base portion is a drainage-passage N. A lip portion a: of lthe valve O is located so that when the valve is open the drainage-passage N is closed. When it is desired not to drain the pipe, as in hot weather, the stop-cock located in the passage is closed and the water is retained.

The main valve of my improved stand-pipe is shown closed in the drawings. When it is desired to open the same, the actuating mechanism is operated,which closes the auxiliary valve M. This also opens the passage T through piston-head B. The pressure in the water-main acts directly upon'the valve C, and as there is opportunity for the Water in the cylinder F to escape it passes out of the cylinder. The initial pressure in the main on the main valve opens it gradually. The Water then flows from the main and fills the vertical portion of the stand-pipe and passes out at the delivery spout or pipe, immediately, of course, iillin g the space between the piston B and valve C and getting the advantage of the increased area of the piston F in forcing the valve open. The main valve and piston of course carry the valve-stem E along with them. When it is desired to close the main, the controlling mechanism is given a reverse motion. This opens the valve M and closes the passage T through the piston-head B. When this is accomplished, the Water in the main P passes through the aperture a,through the hollow stem S, out through the passage S' into the cylinder, and as the surface of the piston B is greater than that of the valve C the water-'pressure at this point gradually moves the valve to the closed position-f. The lip X acts when the main valve opens and Vcloses thedrainage-passage N. When it closes, it opens the drain of the same, permitting the drainage of it as required.

Having thus described my improved standpipe, I desire to state that it can be considerably varied in its details without departing from my invention. Separate connections might be provided for the auxiliary valves for opening the passage B and the passage S, and their operation would be exactly the same in causing the piston to move. This variation is so obvious and as no specific claim is based upon it it is not deemed necessary to showit in this construction. As was intimated before, the means for actuating the auxiliary valve might be varied. Other styles of drainage-apertures might be employed in connection with the main valve, and so far as the valve itself is concerned it does not matter L, pivotally supported thereon; the main valve C, adapted to rest against a suitable seat at the end of the pipe P; a cylinder F, opposite said valve and of larger diameter; a piston-head B, with suitable packing B', in said cylinder having a passage F,therethrough and connected by a stem or piston-rod having passage S, therethrough to said valve C; an auxiliary valve M, on stem E, adapted to open and close the passage S, through the valve and piston; a disk E', lixed on said stem E, adapted to close the passage T, through the piston and having a passage S', cut in it to connect with passage S; a guide as pin c, to properly locate said disk; a stuftingbox around said stem E; connections as lever G, rod H, bifurcated lever I, collar J, and rods K, to actuate said auxiliary valve so that the main valve shall be opened and closed by the pressure of Water in the main as specified.

.2. The combination of a Water-main; a valve to close the end of the same; an enginecylinder of larger cross -section than said valve; a piston with a passage therethrough connected to said valve with a separate passage through the piston and valve; au auxil- IOO iary valve adapted to control the passage through the main valve and piston; an auxiliary valve adapted to control the passage through the piston; suitable means of opening and closing said auxiliary valves to admit water to the cylinder from the water-main or to allow the escape of water from the cylinder to control the main valve as specified.

3. The combination of a water-main; a mainA valve to close the same; an engine-cylinder of larger cross-section than the valve; a piston with a passage therethrough connected by a stem or piston-rod to said valve with a separate passage through the piston and valve; an auxiliary valve on a stem extending through the last-named passage out through the cylinder; a disk on said stem adapted to close the passage through the piston when the other passage is opened and vice versa; and a means of actuating said valve-stem for the purpose specified.

4t. In a s'tand-pipeffor locomotives the combination of a base part with upwardly-projecting portion having a bridge across the same a vertical portion having a pivot-pin at the bottom resting on said bridge; a ring or collar around the vertical portion and resting on the part below; and a packing clamped beneath the ring, as specied.

5. The combination of a water-main a main valve to close the same; an engine-cylinder of IIO IIS

arger cross-seetio11 than the valve; a piston versa; and a means of actuating said Valvexo with a passage therethrough connected by a stem for the purpose specified.

stem or piston-rod to said Valve With a sepa- In Witness whereof I have hereunto set my rate passage through the piston and Valve; an hand and seal in the presence of tWo Witauxiiiary valve on a stem extending through messes. '"'f the last-named passage out through the eyl- JAWES HENDERSON. [L s] nder; a means controlled by said stern adapt- Vitnesses:

ed to close the passage through the piston M. J. HUss,

when the other passage is opened and Vice E. H. HENDERSON. 

